Track wrench



May 12, l 925.

F. A. JIMERSON TRACK WRENCH Filed Oct. 11. 1923 2 Sheets-Sheet l A a V INVENTOR la ancisflzhmnim H \S ATTOR EY .w inim May 12, 1925.

F. A. JIMERSON TRACK WRENCH Filed Oct. 11. 1925 2 Sheets-Sheet 2 25W ms ATTORNEY Patented May 12, 1925.

UNITED STATES PATENT OFFICE.

FRANCIS A. JIMERSON. OF ATHENS. PENNSYLVANIA, ASSIGNOR TO INGERSOLL-RAND COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY TRACK WRENCH.

Application filed October 11, 1923. Serial No. 667,792.

To all whom. it may concern:

Be it known that I, FRANCIS A. J rMnnsoN, a citizen of the United States, and a resident of Athens, county of Bradford, and State of Pennsylvania, have invented a certain Track Wrench, of which the following is a specification accompanied by drawings.

known as'fish plates, which are secured to.

the rails by bolts alternately inserted from opposite sides of the rails. Owing to the awkward position of the bolts, considerable time and trouble have been necessary to screw on or unscrew nuts on the bolts. The nuts on one side of the rail, and then the nuts on the opposite side of the rail may be screwed on or off as desired.

One of the main objects of this invention is to enable rail or fish plate nuts to be tightened or unscrewed in a comparatively short time, and with a minimum expenditure of labor and trouble.

Another object of this invention is to adapt a close quarter or corner drill to be used as a track wrench for screwing on nuts.

A further object of the invention is to produce a fluid operated track wrench, simply constructed, cheaply manufactured and requiring a minimum amount of upkeep.

Further objects of the invention will hereinafter appear, and the invention is shown in one of lts preferred forms in the accompanying drawings, in which Figure 1 is a perspective view of a track wrench part of the handle being broken awa Flg. 2 is a front end elevational view atrack wrench;

Fig. 3 is an enlarged'detail view partly in longitudinal section of the lower end of the track wrench shown in Fig. 1;

Fig. 4 is a'vertical sectional view taken on the line 44 of Fig. 3 looking in the direction of the arrows; and

Fig. 5 1s a vertlcal sectlonal vlew taken on the line 55 of Fig. 3, looking in the direction of the arrows.

Referring toqthe drawings, A designates a fluid operated close quarter or corner drill somewhat similar tothe type shown in the the handle has been lengthened. and a knurled sleeve C actuates a throttle valve for conveniently controlling the motive fluid supply. A drill spindle D is formed with the ratchet teeth E and the ratchet levers F operatively engage the teeth E for imparting rotation to the spindle D. As the mechanism for actuating the ratchet levers F forms no part of the present invention, it

will be suflicient to say that a fluid operated motor is usually employed having. a suitable crank shaft, valve, pistons and connecting rods.

In accordance with the present invention, the driving spindle D is formed with a thrust collar G, which bears against a thrust nut- I-I, threaded into the hub A of the drillA. As shown in Fig. 1, a holder or casing J is formed in two sections K and L preferably secured together by bolts O and nuts P. The opposite ends of the casing J are in this instance closed by the cover plates J and J secured thereto by the bolts K. One end of the spindle D has a bearing in a flanged bushing Q, in the hub A of the drill A.

Gears R and S are preferably formed integrally with the spindle D on the opposite ends thereof. By unscrewing the bolts K and removing the cover plates J and J, 7 access may readily be had to the gears R ands.

In this instance, a driven spindle T, having a hollow bore U, is rotatably mounted in the casing J below the driving spindle D. A gear V is preferably secured to the spindle T by an elongated key W, and meshes with the gear R on the driving spindle D. On

.the opposite end of the driven spindle, a

) rail. Due to its simple and sturdy construceach formed with clutch jaws a and b, which cooperate with clutch jaws'c and d formed on each of the chucks e and f, as shown in Fig. 5; Rotation of the gears V and X is transmitted to the chucks e and 7' respec-- tively by the clutch jaws above described.

The chucks are in this instance formed witha polygonal bore 9, so as to receive nuts of difl'erent sizes and shapes, although the chuck bore may be altered as desired. In order to prevent the chucks e and f moving outwardly from the gears X and V, respectively, a clip h in the form of a flanged split ring, in this instance, surrounds the chuck' and the gears.

The section K of the casing J is preferably provided with integral lugs o'r projections j and k, and a rod 1' extends through and a short distance beyond these projections so that the weight of the wrench may be conveniently supported on the top of a rail, at

either end of the rod, as desired. Cotterpins a in this instance, prevent endwise movement of the rod r.

In. the operation of the wrench, to screw on nuts u on the bolts '0, for fastening the fish plate 2 to the rail If, one end of the rod 1' is placed on thetop of the rail, so that the nut may be readily engaged by the chuck. By actuating the throttle sleeve C to admit motive fluid for operating the motor, the chuck will be rotated through the train of gearing described. After the nut has been tightened as much as possible by the motor, the handle B may be rocked back and forth so that the nut may be further tightened on the bolt by hand. By turning the wrench wrench and having a ch may steady about in order to change from one chuck to the other, the nuts maybe unscrewed. B

extending the rods beyond each side of the uck on opposite sides, the wrench need not be turned around.

but carried across to the opposite rail with out wasting time. In order"to more easily hold the handle B against the torque, set up,

in the operation of the tool, the operator the wrench and hold iteasily to the work by placing his foot on that part of the rod which extends opposite from the tion and comparatively small number of the motor and connected to driving spindle, a driven spindle having a bearing in said holder, 9. gear mounted on pivoted in said holder and capable of being rocked bodily about the axis of said holder through a limited arc while, the machine isin operation, a driving spindle carried by the motor and connected to be operated by said motor, a gear mounted on each end of the said driving spindle, a driven spindle having a bearing .in said holder, gears carried by the driven spindle meshing with the gears on the driving spindle, clutchmembers carried by the driven spindle gears, chucks having clutch members adapted to cooperate with the clutch members on the driven spindle gears for rotation therewith, means for holding the chucks to said gears, and. means {,for holding the machine in operative position relative to the work.

3. In a track wrench, the combination of a holder, a fluid operated motor mounted ment, and a rod for supporting'the wrench and about which the wrench may be oscillated for engaging the work.

4. In a trackwrench, the combination of a holder, a fluid operated motor, pivotally mounted in said holder and adapted to be rocked through a limited arc, a driving spindle connected to be operated by said motor, a gear mounted on each end of the said driving spindle. a driven spindle having a bearing in said holder, gears carried by the driven spindle meshing with the gears on the driving spindle. clutch members carried by the driven spindle gears, chucks having clutch members adapted to cooperate with the 'clutch members on the driven spindle gears for rotation therewith, clips for preventing the chucks from moving outwardly from said gears, lugs carried by the holder. and a rod mounted in said lugs and extending beyond the sidesthereof for supporting the wrench in operative position relative to the work. a

In testimony whereof I have signed this specification.

' FRANCIS A. JIMERSON. 

